ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,678, issued on Sept. 23, was assigned to Lindsay Transportation Solutions LLC (Omaha, Neb.).
"Hinge plate with wedge" was invented by Matthew A. Elmore (Rio Vista, Calif.), Jason Lim (Rio Vista, Calif.) and John James Angus (Omaha, Neb.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An anchorless crash cushion apparatus comprises a number of crash cushion elements and a number of hinge plate assemblies. The crash cushion elements are configured to be connected end-to-end. Each hinge plate assembly comprises a forward structure, a rearward structure, and a wedge incline. The forward structure supports the front end of one of the crash cushion elemen...